samples/ApiDemos/res/values/styles.xml

<?xml version="1.0" encoding="utf-8"?>
<!-- Copyright (C) 2007 The Android Open Source Project

     Licensed under the Apache License, Version 2.0 (the "License");
     you may not use this file except in compliance with the License.
     You may obtain a copy of the License at
  
          http://www.apache.org/licenses/LICENSE-2.0
  
     Unless required by applicable law or agreed to in writing, software
     distributed under the License is distributed on an "AS IS" BASIS,
     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     See the License for the specific language governing permissions and
     limitations under the License.
-->

<resources>
    <!-- Base application theme is the default theme. -->
    <style name="Theme" parent="android:Theme">
    </style>

    <!-- Variation on our application theme that forces a plain
        text style. -->
    <style name="Theme.PlainText">
        <item name="android:textAppearance">@style/TextAppearance.Theme.PlainText</item>
    </style>

    <!-- Variation on our application theme that has a black
         background. -->
    <style name="Theme.Black">
        <item name="android:windowBackground">@drawable/screen_background_black</item>
    </style>

    <!-- A theme for a custom dialog appearance.  Here we use an ugly
         custom frame. -->
    <style name="Theme.CustomDialog" parent="android:style/Theme.Dialog">
        <item name="android:windowBackground">@drawable/filled_box</item>
    </style>

    <!-- A theme that has a translucent background.  Here we explicitly specify
         that this theme is to inherit from the system's translucent theme,
         which sets up various attributes correctly.. -->
    <style name="Theme.Translucent" parent="android:style/Theme.Translucent">
        <item name="android:windowBackground">@drawable/translucent_background</item>
        <item name="android:windowNoTitle">true</item>
        <item name="android:colorForeground">#fff</item>
    </style>

    <!-- Variation on our application theme that has a transparent
         background; this example completely removes the background,
         allowing the activity to decide how to composite.  Also here we
         force the translucency ourself rather than making use of the built-in
         translucent theme. -->
    <style name="Theme.Transparent">
        <item name="android:windowIsTranslucent">true</item>
        <item name="android:windowAnimationStyle">@android:style/Animation.Translucent</item>
        <item name="android:windowBackground">@drawable/transparent_background</item>
        <item name="android:windowNoTitle">true</item>
        <item name="android:colorForeground">#fff</item>
    </style>
    
    <style name="TextAppearance.Theme.PlainText" parent="android:TextAppearance.Theme">
        <item name="android:textStyle">normal</item>
    </style>

    <style name="ImageView120dpi">
        <item name="android:src">@drawable/stylogo120dpi</item>
        <item name="android:layout_width">wrap_content</item>
        <item name="android:layout_height">wrap_content</item>
    </style>

    <style name="ImageView160dpi">
        <item name="android:src">@drawable/stylogo160dpi</item>
        <item name="android:layout_width">wrap_content</item>
        <item name="android:layout_height">wrap_content</item>
    </style>

    <style name="ImageView240dpi">
        <item name="android:src">@drawable/stylogo240dpi</item>
        <item name="android:layout_width">wrap_content</item>
        <item name="android:layout_height">wrap_content</item>
    </style>
</resources>